anyone have the Nortic Track 900 pro elliptical?

I have the Nortic Track Audiostride 900 (its actually for sale right now haha) I'm not sure if it's the same thing as the pro. It works great, I just thought that I would have the motivation to do it at home but I don't so I still go to the gym and use the elliptical, I don't know why. It has an ipod doc and speakers and a fan and a place to put a memory card for more programmed workouts and it folds up to make it easier to store. The only problem I've had with it is that it started making a bunch of noise and one point but my husband just tightened everything up and it worked great again. The other thing is it says you've burned like 600 calories in 30 minutes while the elliptical at the gym would say 300...not sure why about that.